You didn’t. This has been going on in Denmark for months now. American spammers who try to get you to give them your creditcard.

Some of these spammers have problems with their phonesystems though. If their ‘salesperson’ disconnects you, they don’t disconnect your line, so you just hang around their system. That way you can listen in on the next calls, only hearing the salesperson though. So far two of my friends have tried this, listening to these spammers trying to trick other people for hours.